The Experts below are selected from a list of 1506 Experts worldwide ranked by ideXlab platform
Milojevic M. - One of the best experts on this subject based on the ideXlab platform.
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Location Aware Data Aggregation for Efficient Message Dissemination in Vehicular Ad Hoc Networks
2015Co-Authors: Milojevic M.Abstract:An intelligent location-aware data aggregation mechanism for real-time observation, estimation, and efficient dissemination of any kind of traffic information in vehicular ad hoc networks (VANETs) is presented in this paper. The mechanism introduces a location awareness algorithm, enabling spatiotemporal database indexing and providing the location context of the messages without the use of advanced positioning systems such as satellite navigation and digital maps. Intelligent passive clustering and adaptive broadcasting are used to minimize the number of messages Exchanged, Packet collisions, and network load. The incoming messages are fused by a Kalman filter, allowing the description of the traffic-related information as a system characterized by as many variables as needed, depending on the application design. The scheme allows the comparison of aggregates and single observations, which enables their merging and better overall accuracy. Old information in aggregates is removed by real-time database refreshing, thus leaving only newer relevant information for the driver to make real-time decisions in traffic. The mechanism is generic and can be used for any kind of VANET information. It is evaluated by extensive simulations to show the efficiency and accuracy
Pr. Mahmoud Abdellaoui - One of the best experts on this subject based on the ideXlab platform.
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Cross layers security approach via an implementation of data privacy and by authentication mechanism for mobile WSNs
2017Co-Authors: Imen Bouabidi, Pr. Mahmoud AbdellaouiAbstract:To implement a new secure network with high mobility and low energy consumption, we use smart sensors. These sensors are powered by micro batteries generally non rechargeable. So, to extend their lifetime, it is necessary to implement new energy conservation techniques. Existing works separate the two features (security, energy conservation) and are interested specifically in only one layer. Consequently, the originality of this work consists to combine together the two features using a crossing between three layers: physical layer, data link layer and network layer. Our proposition consists firstly in developing a new network deployment in hierarchical areas. This model takes place at the network layer. Secondly, implementing an energy efficient and secure MAC protocol providing a secure authentication, data privacy and integrity in a mobile WSN. Finally, implementing an intrusion detection system protecting the physical layer from malware and viruses that threaten it. We have been used OMNet++ for simulation .Our proposed protocol SXMachiavel offered the best performances and more reliability at the mobility rate (can reach 99% compared with XMachiavel, which doesn’t exceed 35%), loss Packets rate (0.05% for a small network size) and energy consumption (decreases by 0.01% for each Exchanged Packet)
Imen Bouabidi - One of the best experts on this subject based on the ideXlab platform.
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Cross layers security approach via an implementation of data privacy and by authentication mechanism for mobile WSNs
2017Co-Authors: Imen Bouabidi, Pr. Mahmoud AbdellaouiAbstract:To implement a new secure network with high mobility and low energy consumption, we use smart sensors. These sensors are powered by micro batteries generally non rechargeable. So, to extend their lifetime, it is necessary to implement new energy conservation techniques. Existing works separate the two features (security, energy conservation) and are interested specifically in only one layer. Consequently, the originality of this work consists to combine together the two features using a crossing between three layers: physical layer, data link layer and network layer. Our proposition consists firstly in developing a new network deployment in hierarchical areas. This model takes place at the network layer. Secondly, implementing an energy efficient and secure MAC protocol providing a secure authentication, data privacy and integrity in a mobile WSN. Finally, implementing an intrusion detection system protecting the physical layer from malware and viruses that threaten it. We have been used OMNet++ for simulation .Our proposed protocol SXMachiavel offered the best performances and more reliability at the mobility rate (can reach 99% compared with XMachiavel, which doesn’t exceed 35%), loss Packets rate (0.05% for a small network size) and energy consumption (decreases by 0.01% for each Exchanged Packet)
